Ok, so I have been working on a power set up for my 160in C130, I have not weighed it yet, but I'm expecting 55-65 pounds.

First I know having 4 motors making x amount of thrust is more efficient than 1 motor making the same thrust as the 4 different motors have more disk area to grab, and they blow over more wing area.

I'm going with a scale size 16.5 x 12 pitch blades x 4 like scale. I know in full scale they are able to turn there pitch way up as they are not spinning massive rpms.

So using a SK 6374 192kv motor (huge) on 8s 5000 40c lipos, I was getting around 13.5 pounds of thrust on my make shift pulling testing rig. I measured the rpm at 5100-5200 rpm pulling a massive lol 45 amps at WOT and 20 amps at 1/2 stick.

At this rpm I was at 58-60mph prop speed, and a C130 is not the most aerodynamic(and I don't have retracts so wheels are always down-not far on a C130)

Full scale flying speed is 368 MPH and at 133 feet ws x 12in = 1596 round up to 1600 for easy math and my 160in C130 is 10th scale. So .10 of 368mph is 37MPH

There is no way this big plane is going to fly max speed of 37mph and still stay in the air! or I'm

My current prop speed on 8s is 59 mph, my boy suggested I move up to 9s vs 8s, but this will roughly give me 625 more rpm with a prop speed of 66mph vs current 58-60mph prop speed.

The extra thrust will not be a factor as I think I'm way over thrust as it is, currently with my 13.5 pounds x 4 = 54 pounds of thrust for a 55-65 pound C130 with a huge wing, Ill have more than enghof thrust as is, the extra lipo cell if all fallows the same lines will move me up to 15 pounds of thrust per motor with a total of 60 pounds, I'm not trying to hover here LOL

What would you guys do?

Thanks